Faye's Comet

Originally a long-period comet that was
deflected by a close passage of Jupiter
into a much smaller orbit with a period of 7.34 years, just before its discovery
in 1843. The solar heating of Faye's nucleus is such that gas and dust are
not emitted from the subsolar point, that is, where it is noon on the comet,
but from a spot on the afternoon section. The jet effect that results gradually
changes the comet's orbit. Moreover, the jet itself seems to be shifting
position, because of precession of the comet's spin axis, which modifies
the orbit still further.